✨🗑️ ⬆️ Propagate server-side changes to client

[bisgaard-itis]

What do these changes do?

This is a (not entirely clean) PR to propagate several server-side changes to the client. Here is a list of these:

• Update openapi.json so client automatically passes parent_project_uuid and parent_node_id to server when they are in the environment. To do this, pydantic and pydantic-settings are added as dependencies.
• Move all endpoints in the files section to "production mode" (meaning they are no longer in dev-mode). These have already been used for a long time on sim4life.io so I think it is about time they are also reflected here.
• Delete osparc.models module which was deprecated a long time ago.
• Remove testing with python 3.6 and 3.7 and add testing with 3.10 to github actions

Related issue/s

• resolves Adapt PublicAPI/Python client to automatically set the parent project UUID and node ID osparc-simcore#5881
• Enhancement: Display statistics of computational jobs together with their parent nodes osparc-simcore#5816

How to test

cd clients/python && make install-unit-test && cd test/test_osparc && python -m pytest .

For internal developers

[pcrespov]

I understand why you want to go to 3.8 :-).
thx for the extra effort! Greatly appreciated!

[sanderegg]

Cool thanks a lot, a few comments.